What the 4.63V threshold means for your rail
The ADM812LARTZ-REEL7: That 4.63V threshold sits just below a nominal 5V rail — it catches brownouts and slow ramps without false-triggering on normal ripple. The 140ms timeout gives a typical MCU or DSP enough time to finish a register save before the core voltage collapses.
Active High, Push-Pull — no external pull-up needed
The reset output is Active High and Push-Pull (Totem Pole), so it drives the reset line high when the monitored voltage is below threshold. No external pull-up resistor is required — the output stage sources current directly. This matters when the downstream device expects a logic-high reset signal and the board layout is tight.
Industrial temperature range, SOT-143-4 package
The SOT-143-4 package (also known as TO-253-4) is a four-lead surface-mount footprint with a 1.9 mm body width, hand-solderable with a fine-tip iron and a steady hand.
Analog Devices lists this part as Active in production. It is ROHS3 compliant.